hmmm, always wondered about that saab...has a ton of impreza body pieces and the interior looks like a wrx with a saab logo on the steering wheel. i never knew saab and subaru had anything to do with each other.
i'm pming the guy who made the sep. on iwsti.com to get some more info and i'll let you know what he says.
crawford also makes an air/oil sep. that looks alot more like a catch can, but they're asking $350 for it. one thing that makes me wonder about these things is they seem to return the pcv air through one output. i've read about how it's not ideal to "T" the 2 pcv components into one catch can, so why does it work with an air/oil sep???
there's not too much info on these things, seems like catch cans are the more popular choice.